* [PATCH v4 7/9] ARM: dts: Add the support for exynos busfreq on Exynos3250-based Rinato/Monk board
2015-01-15 1:50 [PATCH v4 0/9] devfreq: Add generic exynos memory-bus frequency driver Chanwoo Choi
@ 2015-01-15 1:50 ` Chanwoo Choi
0 siblings, 0 replies; 2+ messages in thread
From: Chanwoo Choi @ 2015-01-15 1:50 UTC (permalink / raw)
To: myungjoo.ham, kgene
Cc: kyungmin.park, rafael.j.wysocki, mark.rutland, a.kesavan,
tomasz.figa, k.kozlowski, b.zolnierkie, robh+dt, cw00.choi,
inki.dae, linux-pm, linux-kernel, linux-arm-kernel,
linux-samsung-soc, Youngjun Cho
This patch adds the Exynos3250 memory-bus node which includes the regulator
and devfreq-event phandle. The devfreq-event phandle is used for the
governor of devfreq device and provide the current usage state of
MIF (Memory Interface) / INT (Internal) memory bus group.
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Myungjoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Youngjun Cho <yj44.cho@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/boot/dts/exynos3250-monk.dts | 12 ++++++++++++
arch/arm/boot/dts/exynos3250-rinato.dts | 12 ++++++++++++
2 files changed, 24 insertions(+)
diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
index fcceb59..efadb16 100644
--- a/arch/arm/boot/dts/exynos3250-monk.dts
+++ b/arch/arm/boot/dts/exynos3250-monk.dts
@@ -460,6 +460,18 @@
};
};
+&memory_bus_mif {
+ devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+ vdd-mem-supply = <&buck1_reg>;
+ status = "okay";
+};
+
+&memory_bus_int {
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-mem-supply = <&buck3_reg>;
+ status = "okay";
+};
+
&xusbxti {
clock-frequency = <24000000>;
};
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index 9dd1ce1..cf800ed 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -635,6 +635,18 @@
};
};
+&memory_bus_mif {
+ devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+ vdd-mem-supply = <&buck1_reg>;
+ status = "okay";
+};
+
+&memory_bus_int {
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-mem-supply = <&buck3_reg>;
+ status = "okay";
+};
+
&xusbxti {
clock-frequency = <24000000>;
};
--
1.8.5.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v4 7/9] ARM: dts: Add the support for exynos busfreq on Exynos3250-based Rinato/Monk board
@ 2015-01-19 9:35 MyungJoo Ham
0 siblings, 0 replies; 2+ messages in thread
From: MyungJoo Ham @ 2015-01-19 9:35 UTC (permalink / raw)
To: 최찬우, kgene@kernel.org
Cc: 박경민, rafael.j.wysocki@intel.com,
mark.rutland@arm.com, ABHILASH KESAVAN, tomasz.figa@gmail.com,
Krzysztof Kozlowski, Bartlomiej Zolnierkiewicz,
robh+dt@kernel.org, 대인기,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, 조영준
>
> This patch adds the Exynos3250 memory-bus node which includes the regulator
> and devfreq-event phandle. The devfreq-event phandle is used for the
> governor of devfreq device and provide the current usage state of
> MIF (Memory Interface) / INT (Internal) memory bus group.
>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Myungjoo Ham <myungjoo.ham@samsung.com>
> Cc: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: Youngjun Cho <yj44.cho@samsung.com>
> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
I am not so confident with this SoC as I didn't write any kernel codes
for Exynos3250 devices. Anyway, as the syntax and usage appears good to me.
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
> ---
> arch/arm/boot/dts/exynos3250-monk.dts | 12 ++++++++++++
> arch/arm/boot/dts/exynos3250-rinato.dts | 12 ++++++++++++
> 2 files changed, 24 insertions(+)
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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